Roller-bearing.



5.. A. PERMNS.

HOHER HEARNG y APPLicATIoN men 111911.13. 11110.. 1111111150 1111:. 13.191e.

11111111191 1u1y17; 1911'. f

2 SHEETS-SHEET L Mmm.,

' the JULIUSAUGUSTUS PERKINS, F NEW YORK, N. Y.

ROLLER-BEARING.

reasons,

Application filed April 13, 1914, Serial. No. SBLSSS.

T0 all whom t may concern.'

Be it known that l, Juntos A. PERKINS., a citizen of the United Statesof America, and resirgling at New York, in the county of New York andState of New York, have invented certain new and useful improve ments inRoller-Bearings, oi? which the iollowing is a specification, such aswill enable those skilled in the art to which it appertains to make anduse the same.

This invention relates to journal boxes provided with roller bearingsfor a journal therein, with particular reference to the bea-ring'members for the rollers, and is a modification over the forms shown,described, and broadly claimed in. my Letters Patent of the 'UnitedStates bearing date et September 5, 1911, No. 1,002,442, wherein bearingmembers,`or tracks, are disclosed at an inclination to the central,vertical, longitudinal, plane of the box. lt has been found that, whilethe forms therein shown possess certain advantages over the form hereinshown, the cost of manufacture thereof has been excessive and therealineinent of rollers, if moved out of' alinement for any cause, isnot as well accomplished as by the present form, as will be laterlexplained.

My invention is fully described in the following specification, ofAwhich the accompanying drawings forni ay part, in which separate partsare vdesignated by the same reference characters in each of the views,and in whichr- Figure l is a longitudinal, central, section takenthrough a journal box constructed in accordance with my presentinvention, with journal and rollers in position;

Fig. 2 is a section taken on the line 2-2 of Fig. l.;

Fig. 3 isa view similar to Fig. l but withthejournal and rollersremoved, and

Fig. 4i is a section takencn the line 4-4 of Fig. 3. i j

ln the drawings forming a part of this application I have shown ajournal boxe,

having the journal of an axle o therein sur rounded by; a series ofrollers c guided by a cage c2, said box, in the form shown, having adetachable roller bearingq block al in the upper part thereof and asfully described in 'the patent referred to, but the particular form ofthis feature of the construction has no bearing on the presentinvention.

'xirranged in the bottom ot the box, as clearly shown in Figs. 3 and 4f,is a roller Specification of Jl'iette'rc Patent.

bearing.,r track a2 which is Patented July il?, tutti. Renewedlecember13, 1916. Serial No. 136,815.

so located as to he in the central plane of the cage of rollers, saidtrack being supported by a web o3 hav ing an opening1 o4 therethroughfor the passage of lubricants and, in view of the height of the saidweb, a refuse chamber is formed in the bottom of the box, but it will benoted that the track fr? does not extend to the inner sides of the box.

Projecting from the two sets of tracks a5 and o, the individual membersof which are at or closelyadjacent to the vcorresponding ends of therollers c and the individual tracks of each set are in exact line withthe corresponding tracks of the other set and all of said tracks a5 andom extend an equal distance into the box in-d terior whereby theyoverlap the corresponding ends of the track a2, this being clearly Shownin Fig. il. As shown in Fig. 2, all the tracks are concentric, orsubstantially so, to the journal but there is a slight excess of theradius oi the arc of the tracks over the radius of the r circle formedby the series of rollers in order lthat said rollers may be insertedwithin the bearing members, and this clearance forms an important partoi the operating result vin view ot the possibility of of the rollers inthe cage.

sides of the box are' When the rollers pass beneath the journal theyclear the journal and rest upon the side tracks on the correspondingsideof the box, this clearance from thev journal being very each rollerreaches the axial journal at which time there is full clearancetherefrom and the particular roller at t is point thcn rests upon thetrack o2 whi t plane of the radial movement 35 gradual until 9@ supportssaid roller at the exact center e5 thereof, permitting vertical orlateral movement of the roller ends within the limits of the cageengagement, and any roller that had been moved out of alinement becauseo structural defects or inaccuracies, or because of foreign niatter oneither the rollers, journal, or bearing members, is permitted to realineitself previous to its upward planetary movement on the other side ofthe box.

Ils the rollers move into the lower central 10a position the portionthereof between the side tracks is above the refuse chamber a zd anyscale or other mattei' may fall therefrom into said chamber, and afterthe rollers reach the-track ai and thereafter leave the 110 side tracksthe roller ends are free to clear themselves of scale or other matter,thus A porting tracks.

insuring a clearance of the full roller length not only from the ournalbut from the sup- ,the journal brings said rollers into an eccentricposition with respect to the journal as they roll along the tracks andthis feature is of importance in my bearing for the reason that as therollers move upwardly they gradually become wedged between the journaland the side bearing members and they gradually begin to take the loadas this upward movement continues until full load is carried above thejournal.

In order to take full advantage of this gradual wedging effect it isessential that the roller ends be simultaneously engaged to prevent anytwisting thereof in thev cage, and this is one of' the reasons that Iarrange the side tracks parallel and of equal length, this resultnotbeing insured where the tracks-are inclined as shown in the saidApatent forl the reason that, in the latter form, the rollers .arecentrally lsupported at first and thereafter gradually toward theirends, permitting a slight twisting or dis.

placement of the rollers not possiblewhere the roller ends aresimultaneously engaged by the side tracks. f

Aside from the advantages of the present construction, already referredto, the cost of manufacture is greatly reduced as it is possible to makecores for the parallel track arrangement much more easily than for theinclined tracks, and to produce a commercial article the cost ofmanufacture thereof cannot be prohibitive as is possibly the case in theinclined tracks. i

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A journal box, a journal therein, an upper bearing member therein,rollers interposed between said journal and bearing member, and a lowerbearing member, comprising relatively narrow supports at the ends ofsaid rollers extending for a relatively short distance into said box,from each side thereof, at right angles to the axis of said box,

and abruptly terminated upon lines perpendicular to the planes of saidsupports, Whereby said rollers are maintained in positive alinement forthe lengths of said supports, and a central support for said rollers tobridge the gap between opposite end supports, whereby said rollers mayclear themselves of deleterious matter and re-aline themselves previousto the upward move# ment thereof.

In testimony that I claim the foregoing as my invention I have signed myname in presence of the subscribing witnesses this 10th day of April,1914.

JULIUS AUGUSTUS PERKINS. Witnesses:

ADELINE ELIZABETH PARKER, J. C, LARSEN

